Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 9h 04m at 1:36 pm (-0.2 ft)
Next high tide : 11:43 pm (3.1 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jul 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:263.77:530.15:3110:09Waning Crescent1Wed
2Thu11:313.88:30-0.15:3210:08Waning Crescent2Thu
3Fri11:363.89:05-0.35:3210:08Waning Crescent3Fri
4Sat11:443.99:39-0.45:3310:07New Moon4Sat
5Sun11:563.810:14-0.55:3410:07New Moon5Sun
6Mon10:49-0.55:3510:06New Moon6Mon
7Tue12:053.711:033.511:23-0.55:3610:06New Moon7Tue
8Wed10:063.411:57-0.45:3710:05Waxing Crescent8Wed
9Thu9:423.312:30-0.25:3810:05Waxing Crescent9Thu
10Fri9:223.21:010.15:3910:04Waxing Crescent10Fri
11Sat9:153.31:310.45:4010:03First Quarter11Sat
12Sun7:492.09:213.54:131.71:580.95:4110:02First Quarter12Sun
13Mon9:531.89:363.84:481.12:201.35:4210:01First Quarter13Mon
14Tue12:121.85:290.52:251.85:4310:00First Quarter14Tue
15Wed10:294.36:14-0.15:449:59Waxing Gibbous15Wed
16Thu11:064.57:02-0.55:469:58Waxing Gibbous16Thu
17Fri11:484.57:52-0.95:479:57Waxing Gibbous17Fri
18Sat8:43-1.05:489:56Full Moon18Sat
19Sun12:364.49:34-1.15:499:55Full Moon19Sun
20Mon1:294.210:25-1.05:519:54Full Moon20Mon
21Tue2:293.87:483.211:14-0.811:182.95:529:53Waning Gibbous21Tue
22Wed3:373.48:063.312:00-0.55:539:51Waning Gibbous22Wed
23Thu4:532.98:273.312:572.512:44-0.15:559:50Waning Gibbous23Thu
24Fri6:182.58:503.42:152.11:250.45:569:49Waning Gibbous24Fri
25Sat7:502.29:123.43:171.62:030.95:589:47Third Quarter25Sat
26Sun9:332.09:323.44:111.22:351.35:599:46Third Quarter26Sun
27Mon11:322.09:513.54:590.82:591.86:019:44Third Quarter27Mon
28Tue10:093.65:430.56:029:43Third Quarter28Tue
29Wed10:263.66:250.36:039:41Waning Crescent29Wed
30Thu10:423.77:050.16:059:40Waning Crescent30Thu
31Fri11:003.87:44-0.16:069:38Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

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What time does the tide turn (slack tide) in Adak Island, AK today?

Slack tide in Adak Island, AK is approximately 6:39 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Adak Island, AK?

Adak Island, AK is currently in a spring phase. Tonight's moon is 95% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Adak Island, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Adak Island, AK?

Tide predictions for Adak Island, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Adak Island, AK?

Tide data for Adak Island, AK is sourced from NOAA Station #9461380. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9461380.

What is the moon phase in Adak Island, AK tonight?

Tonight the moon over Adak Island, AK is Waning Gibbous (95% illuminated). This places Adak Island, AK in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA